3-Butynoic acid CAS 2345-51-9
Purity 97%+In StockPharmaceutical Standards
| CAS No. | 2345-51-9 |
| Molecular Formula | C4H4O2 |
| Molecular Weight | 84.07 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
High-purity 3-Butynoic acid (CAS 2345-51-9) pharmaceutical standards reference standard. Molecular formula: C4H4O2. Molecular weight: 84.07 g/mol. Produced by CATO, one of China's leading reference material manufacturers, with COA documentation and global shipping.
Physical & Chemical Properties
| Molecular Formula | C4H4O2 |
| Molecular Weight | 84.07 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO, water (slightly soluble) |
| Stability | May oxidize slowly on prolonged air exposure |
| Degree of Unsaturation (DBE) | 3.0 |
| UV Absorption | UV-absorbing |
| CAS Registry Year (est.) | 1957 |
Related Butynoic Standards
Recommended Standards
- 2-Furanol (CAS 22125-63-9)
- Buta-2,3-dienoic acid (CAS 5732-10-5)
- 2-Butenedial (CAS 2363-83-9)
- 4-{[2,4-Di(tert-butyl)phenoxy]methyl}piperidinehydrochloride (CAS 1220021-32-8)
- N-[4-Hydroxy-3-(sulfooxy)phenyl]acetamide Sodium Salt (CAS 60603-11-4)
- 4-(5-Phenyloxazol-2-yl)benzaldehyde (CAS 61351-62-0)
- 6'-Chloro-2,3'-bipyridine (CAS 93297-75-7)
- 2,7-Dibromo-9,9-difluoro-9H-fluorene, 97% (CAS 1229603-71-7)
- 5-Chloro-1,3-difluoro-2-(2-methylpropoxy)benzene (CAS 1881293-47-5)
- Prolactin-Releasing Peptide (1-31) (human) (CAS 215510-22-8)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
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- Technical support: +86 13829788188 / jacky.chen@cato-chem.com